title: Nucleic acids. Adding to the genetic alphabet.
authors.forename: L E
authors.initials: LE
authors.lastname: Orgel
mesh_terms: D005075:Biological Evolution; D004259:DNA-Directed DNA Polymerase / Q000502:physiology; D012321:DNA-Directed RNA Polymerases / Q000502:physiology; D005815:Genetic Code; D009690:Nucleic Acid Conformation
chemical_list: D012321:DNA-Directed RNA Polymerases; D004259:DNA-Directed DNA Polymerase